Screenshot: https://screenshot.googleplex.com/9K6C4NZMfMzCABE.png Change-Id: I32b0240910df6a953c8843895f3b7e22d5adc5depull/2/head
Manuel Vivo
2 years ago
committed by
Don Turner
parent
ca73f5598f
commit
de2f07d1a4
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.samples.apps.nowinandroid.core.model.data
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/**
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* An [author] with the additional information for whether or not it is followed.
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*/
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data class FollowableAuthor(
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val author: Author,
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val isFollowed: Boolean
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)
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.samples.apps.nowinandroid.core.testing.repository
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import com.google.samples.apps.nowinandroid.core.domain.repository.AuthorsRepository
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import com.google.samples.apps.nowinandroid.core.model.data.Author
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import kotlinx.coroutines.channels.BufferOverflow
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import kotlinx.coroutines.flow.Flow
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import kotlinx.coroutines.flow.MutableSharedFlow
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class TestAuthorsRepository : AuthorsRepository {
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/**
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* The backing hot flow for the list of followed author ids for testing.
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*/
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private val _followedAuthorIds: MutableSharedFlow<Set<Int>> =
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MutableSharedFlow(replay = 1, onBufferOverflow = BufferOverflow.DROP_OLDEST)
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/**
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* The backing hot flow for the list of author ids for testing.
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*/
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private val authorsFlow: MutableSharedFlow<List<Author>> =
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MutableSharedFlow(replay = 1, onBufferOverflow = BufferOverflow.DROP_OLDEST)
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override fun getAuthorsStream(): Flow<List<Author>> = authorsFlow
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override fun getFollowedAuthorIdsStream(): Flow<Set<Int>> = _followedAuthorIds
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override suspend fun setFollowedAuthorIds(followedAuthorIds: Set<Int>) {
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_followedAuthorIds.tryEmit(followedAuthorIds)
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}
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override suspend fun toggleFollowedAuthorId(followedAuthorId: Int, followed: Boolean) {
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getCurrentFollowedAuthors()?.let { current ->
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_followedAuthorIds.tryEmit(
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if (followed) current.plus(followedAuthorId)
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else current.minus(followedAuthorId)
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)
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}
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}
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override suspend fun sync(): Boolean = true
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/**
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* A test-only API to allow controlling the list of topics from tests.
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*/
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fun sendAuthors(authors: List<Author>) {
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authorsFlow.tryEmit(authors)
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}
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/**
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* A test-only API to allow querying the current followed topics.
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*/
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fun getCurrentFollowedAuthors(): Set<Int>? = _followedAuthorIds.replayCache.firstOrNull()
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}
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.samples.apps.nowinandroid.core.ui
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import androidx.compose.foundation.background
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import androidx.compose.foundation.interaction.MutableInteractionSource
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.selection.toggleable
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import androidx.compose.foundation.shape.CircleShape
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import androidx.compose.material.Icon
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import androidx.compose.material.icons.Icons.Filled
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import androidx.compose.material.icons.filled.Add
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import androidx.compose.material.icons.filled.Done
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import androidx.compose.material.ripple.rememberRipple
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.remember
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.composed
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import androidx.compose.ui.draw.clip
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.semantics.Role
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import androidx.compose.ui.unit.Dp
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import androidx.compose.ui.unit.dp
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@Composable
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fun FollowButton(
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following: Boolean,
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modifier: Modifier = Modifier,
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enabled: Boolean = true,
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onFollowChange: ((Boolean) -> Unit)? = null,
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backgroundColor: Color = Color.Transparent,
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size: Dp = 32.dp,
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iconSize: Dp = size / 2,
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followingContentDescription: String? = null,
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notFollowingContentDescription: String? = null,
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) {
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val background = if (following) {
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MaterialTheme.colorScheme.secondaryContainer
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} else {
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backgroundColor
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}
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Box(
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modifier = modifier.followButton(onFollowChange, following, enabled, background, size),
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contentAlignment = Alignment.Center
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) {
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if (following) {
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Icon(
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imageVector = Filled.Done,
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contentDescription = followingContentDescription,
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modifier = Modifier.size(iconSize)
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)
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} else {
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Icon(
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imageVector = Filled.Add,
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contentDescription = notFollowingContentDescription,
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modifier = Modifier.size(iconSize)
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)
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}
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}
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}
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private fun Modifier.followButton(
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onFollowChange: ((Boolean) -> Unit)?,
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following: Boolean,
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enabled: Boolean,
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background: Color,
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size: Dp
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): Modifier = composed {
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val boxModifier = if (onFollowChange != null) {
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val interactionSource = remember { MutableInteractionSource() }
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val ripple = rememberRipple(bounded = false, radius = 24.dp)
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this
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.toggleable(
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value = following,
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onValueChange = onFollowChange,
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enabled = enabled,
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role = Role.Checkbox,
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interactionSource = interactionSource,
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indication = ripple
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)
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} else {
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this
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}
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boxModifier
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.clip(CircleShape)
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.background(background)
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.size(size)
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}
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@ -0,0 +1,165 @@
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.samples.apps.nowinandroid.feature.foryou
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.Column
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.fillMaxWidth
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import androidx.compose.foundation.layout.height
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.layout.sizeIn
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import androidx.compose.foundation.lazy.LazyRow
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import androidx.compose.foundation.lazy.items
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import androidx.compose.foundation.selection.toggleable
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import androidx.compose.foundation.shape.CircleShape
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.Surface
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import androidx.compose.material3.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.draw.clip
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import androidx.compose.ui.layout.ContentScale
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import androidx.compose.ui.res.stringResource
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import androidx.compose.ui.semantics.Role
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import androidx.compose.ui.semantics.semantics
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import androidx.compose.ui.semantics.stateDescription
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import androidx.compose.ui.text.font.FontWeight
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import androidx.compose.ui.text.style.TextAlign
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.unit.dp
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import coil.compose.AsyncImage
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import com.google.samples.apps.nowinandroid.core.model.data.Author
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import com.google.samples.apps.nowinandroid.core.model.data.FollowableAuthor
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import com.google.samples.apps.nowinandroid.core.ui.FollowButton
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@Composable
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fun AuthorsCarousel(
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authors: List<FollowableAuthor>,
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onAuthorClick: (Int, Boolean) -> Unit,
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modifier: Modifier = Modifier
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) {
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LazyRow(modifier) {
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items(items = authors, key = { item -> item.author.id }) { followableAuthor ->
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AuthorItem(
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author = followableAuthor.author,
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following = followableAuthor.isFollowed,
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onAuthorClick = { following ->
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onAuthorClick(followableAuthor.author.id, following)
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},
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modifier = Modifier.padding(8.dp)
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)
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}
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}
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}
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@Composable
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fun AuthorItem(
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author: Author,
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following: Boolean,
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onAuthorClick: (Boolean) -> Unit,
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modifier: Modifier = Modifier,
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) {
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val followDescription = if (following) {
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stringResource(id = R.string.following)
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} else {
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stringResource(id = R.string.not_following)
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}
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Column(
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modifier = modifier
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.toggleable(
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value = following,
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enabled = true,
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role = Role.Button,
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onValueChange = { newFollowing -> onAuthorClick(newFollowing) },
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)
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.sizeIn(maxWidth = 48.dp)
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.semantics(mergeDescendants = true) {
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stateDescription = "$followDescription ${author.name}"
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}
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) {
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Box(modifier = Modifier.fillMaxWidth()) {
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AsyncImage(
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modifier = Modifier
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.size(48.dp)
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.clip(CircleShape),
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model = author.imageUrl,
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contentScale = ContentScale.Fit,
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contentDescription = null
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)
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FollowButton(
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following = following,
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backgroundColor = MaterialTheme.colorScheme.surface,
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size = 20.dp,
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iconSize = 14.dp,
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modifier = Modifier.align(Alignment.BottomEnd)
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)
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}
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Spacer(modifier = Modifier.height(4.dp))
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Text(
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text = author.name,
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style = MaterialTheme.typography.bodySmall,
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textAlign = TextAlign.Center,
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fontWeight = FontWeight.Medium,
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maxLines = 2,
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modifier = Modifier.fillMaxWidth()
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)
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}
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}
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@Preview
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@Composable
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fun AuthorCarouselPreview() {
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MaterialTheme {
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Surface {
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AuthorsCarousel(
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authors = listOf(
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FollowableAuthor(
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Author(1, "Android Dev", "", "", ""),
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false
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),
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FollowableAuthor(
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Author(2, "Android Dev2", "", "", ""),
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true
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),
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FollowableAuthor(
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Author(3, "Android Dev3", "", "", ""),
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false
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)
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),
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onAuthorClick = { _, _ -> },
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)
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}
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}
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}
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@Preview
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@Composable
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fun AuthorItemPreview() {
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MaterialTheme {
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Surface {
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AuthorItem(
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author = Author(0, "Android Dev", "", "", ""),
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following = true,
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onAuthorClick = { }
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)
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}
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}
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}
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